Golf ball with spun elastic threads

Details Golf ball with spun elastic threads Golf ball with spun elastic threads

1999-03-12

2000-11-21

Gerrity, Stephen F.

Games using tangible projectile

Golf

Ball

57210, 57225, 428 74, 428401, 473354, 473356, 473357, 473360, 473362, A63B 3708

Patent

active

061495352

ABSTRACT:
The present invention is directed towards a golf ball which comprises a center, at least one cover layer, and at least one layer of windings between the center and the cover. Preferably, the thread of the present invention is comprises of at least about 10 individual strands that are each about 0.01 inches in diameter. Most preferably, the thread is a solvent spun polyether urea thread manufactured by combining over 25 strands with diameters of less than about 0.002 inches. Because of the smaller thread dimension, the thread of the present invention is capable of being wound more densely than the typical thread. The elastic modulus of this thread is greater than about 20 ksi when wound about a center. The maximum elongation of the thread is greater than about 8%. The smaller cross-sectional area of the thread and higher elastic modulus of the thread also enable production of golf balls with less total thread volume. Thus, wound balls with larger liquid or solid centers may be produced to achieve desired spin characteristics.

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patent: 5962140 (1999-10-01), Rajagopalan

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